Process and machine for the manufacture of paper tubes



Jilly 23, 1935. JARRIER 2,008,717

PROCESS AND MACHINE FOR THE MANUFACTURE OFPAPER TUBES Filed Feb. 20, 1930 2 Sheets-Sheet 1 INVENTOR;

WWL

Attorney.

R. JARRIER July 23, 1935.

PROCESS AND MACHINE FOR THE MANUFACTURE OF PAPER TUBES Filed Feb. 20, 1950 2 Sheets-Sheet 2 L 2k Attorney.

mn/ENTOR;

Patented July 23, 1935 PATENT OFFICE PROCESS AND MACHINE FOR THE MANU- FACTURE OF PAPER TUBES Ren Jarrier, "St-Quentin, France, assignor to Bartlett Arkell, New York, N. Y.

Application February 20, 1930, Serial No. 429,961

' In France February 2'7, 1929 22 Claims.

The present invention relates to a process for the manufacture of paper tubes and to a machine embodying .the same, which machine is chiefly characterized by the fact that a paper tube consistingof several convolutions of paper impregnated with a suitable waterproofing substance, is subjected to this impregnation only in certain regions which are suitably spacedapart upon the sheet of paper, and preferably upon a single complete convolution.

The machine employed for the said process is chiefly characterized by the fact that in addition to the pasting device, it comprises a device for impregnating the paper which is operated in synchronism with the other movements of the machine in such manner as to impregnate the paper solely upon suitably spaced regions.

According to another feature of the invention, the impregnating device comprises a roller movable in guides and supported by a cam rotating in synchronism with the winding mandrel, in such manner that during its displacement, the roller will bear upon the paper and thus brings it into contact with a second roller immersed in a bath of suitable material.

' Further characteristics will be specified in the following description with reference to the accompanying drawings which are given by way of example.

Fig. 1 is a general front view of the machine provided with the impregnating device according to the invention.

Fig. 2 is a corresponding section, certain parts being omitted or broken away.

Fig. 3 is a detail view of the lifting cam on a larger scale.

Fig. 4 is a front view of the device serving to form the bellows.

Fig. 5 is a section on the line 5- 5 of 4;

Fig. 6 is a perspective view of the winding mandrel improved according to the invention.

' In the form of construction herein represented the machine, of a known type, essentially comprises a winding mandrel I provided with means 2 for securing the sheet of paper 3 to be wound, which is fed from a roll of paper Q, and also an automatic device for pasting the paper which consists of two rollers 5 resting upon cams 6 and vertically movable in guides 11. The said rollers are adapted for immersion in a Vessel 8 containing an'adhesive substance. The said cams are rotated in synchronism with the shaft 9 of the mandrel by means of chains I0 cooperating with sprocket wheels l I--l2, thus affording the proper speed reduction, or by any other suitable mechanism. Rollers I3-l4-l5 serve to guide the paper 3. It is observed that by rotating the shaft 9 after pressing the edge of the paper 3 against the said mandrel by means of the device 2, the paper will be wound upon the mandrel 5 during a certain number of revolutions of the latter until an automatic uncoupling device l6, known per se, stops the said mandrel. The cams 6 which are rotated in synchronism will raise the rollers 5 at the proper time thus placing upon 10 the paper a layer of the adhesive substance in the proper disposition.

The machine is preferably regulated in such manner that! the said rollers will be raised at the end of the first revolution and also at the be- 5 ginning of the last revolution. The paper is then cut off, and the securing device? released, and the paper thus formed into a tube is disengaged by sliding it along the mandrel, first lowering the pivoted bearing ll.

For the obtainment of waterproof sacks, paper is impregnated according to the known methods with oil, paraffine or the like. However when the paper is thus impregnated upon its whole surface, this causes a great consumption of such material, with a resulting increase in the cost.

Applicant has observed that if the sacks consist of several turns of paper, it is sufiicient to impregnate only one of these turns in order to obtain a sack which is quite waterproof.

For this purpose, and in conformity to the invention, there is mounted on the machine a vessel 68 containing the impregnating material which can be liquefied to the proper degree by suitable heating means, for instance a. set of tubes I9 adapted for the circulation of a hot fluid. In the said vessel is constantly immersed a loose roller m whose upper generatr'ix is at a short distance from the paper 3. On the other side of the paper is disposed a second roller 20, movable in guides 2 I and having at the ends suitable disks 22 secured to its shaft, said disk being supported solely by cams 23 mounted on a shaft 24 rotatable in the machine frame and actuated in synchronism with the shaft 9 of the mandrel by any suitable mechanism providing for the proper speed reduction, for instance. chains 25 cooperating with the-sprocket wheels 26-41; said cam has a circular part 23'having as a centre the main axis, and also two ramps 29-30 joinedto the said circular part and in "such dispositionthat the distance a, b will be less than the distance between the surfaces of therollers l9 and 263. When the disk rests upon the part 28, the roller 20 willbe held in the raised position, but it will be raised 01' lowered when the disk 22 is in contact with one of the ramps 29-40. The outline of the cam, and the speed reduction ratio of the wheels 262'|, will depend upon the extent and the number of revolutions of impregnation which are to be effected for a given number of revolutions of the mandrel.

For the recovery of the excess of the material absorbed by the paper 3, a small trough 3| is disposed above the said vessel 68, and it is pierced with the apertures 32; a small roller 33 obliges the paper to travel in contact with the edge of the said trough.

The operation is as follows:

The mandrel rotates, and the paper is thus unwound; the shaft 24 is rotated according to the arrow 1. When the disk 22 comes upon the ramp 29, the roller 21'! will bear by its own weight upon the paper 3, thus pressing it against the roller us by which it is impregnated with the material. The ramp now comes into action, Wherebythe roller 20 is again raised, and it is maintained in the raised position by the part 28. The excess of the impregnating material is expelled by the friction of the paper 3 against the edge of the trough 3i, and it descends through the apertures 32 into the vessel I8. I

In addition to the said arrangement, the machine may comprise an analogous device by which any, desired indications may be printed upon the paper, and herein the oller 20 will be replaced by an india rubber printing roller operating in a bath of aniline colour or the like, and the direction of the winding of the paper upon the mandrel is now reversed in order that the face to be printed upon will be the outer face of the tube.

The machine may be made entirely automatic, by the use of suitable devices controlled by cams in synchronism with the shaft of the mandrel, by which the paper will be automatically cut off at the proper time by a movable cutting blade, also providing for the automatic opening of the mandrel, and for the discharge of the sack by means of a carriage or a lever provided with clamps, as well as the automatic removal and engagement of the pivoting'bearing, and the paper will also be inserted into the slot of the mandrel, being then held in place, and the mandrel will be rotated, the whole being efiected by electric or other means.

To the said machine may be added a device for the formation'of bellows folds in the sack, and for this purpose two guides 34 are connected together by a cross-piece 35 forming a hub 36 by which they may be mounted upon anextension of the shaft 9 of the mandrel. The said guides have a U shape and are symmetrical with reference to the axis. Into each U part is inserted a member 3], leavinga space on each side which exceeds the thicknessof the tube to be obtained. The said members 31'carry at one end a roller 38 rotatable on an axle 39, and in this part the guides 34 are pointed at the ends 40; these ends extend beyond the respective rollers 40 in order tofacilitate the engagement of the tube.

The said apparatus is employed in the following manner:

The hub 36 is disposed upon the extension of the shaft of the mandrel, with the pointed end 40 towards the mandrel, the members 37 being held in place by suitable means, for instance by uprights 3! which are optionally. secured to the machine frame. When the sack is drawn upon in order to remove it from the mandrel, the part which is already released will engage upon the pointed end 40, and the end of the tube proceeds below the roller 38 which commences the folds adapted to form the bellows. By continuing to draw out the tube, the ramp formed by the pointed part 40 will flatten the tube and will increase the depth of the bellows part. The tube provided with its finished bellows will issue at the other end.

Fig. 6 shows an improvement to the'winding mandrel. This improvement consists in providing the mandrel with one (or more) longitudinal strip 44 secured thereto, made of india dubber or other yielding material and slightly projecting from the outer surface of the mandrel. Said stripe is so located that the sheet of material will be pressed thereupon by the glueing means, namely by the rollers5 (Fig. 2). In this manner stripes of glue will be obtained which will have substantially the same width as the strip 44, without side streamings which would'give to the tube an unsightly appearance, particularly in the case of tubes impregnated with a waterproofing substance. Obviously the stroke of the rollers it will be so adjusted that the latter will slightly compress the strip 44. 1

If the glueing surface of the rollers 5 is itself made of india rubber, the strip 44 may be made of harder material for instance of wood.

Obviously, the present invention is not limited to the form of construction herein described, which is given solely by way of example. It is possible, for instance, to substitute for the two separate camsli a single cam with a double boss, or two cams placed together, one being slidable in the other, which cams are held in the proper position bynuts. This will afford an intermittent pasting of the paper with the use of a single pasting roller instead of two.

Having now described my invention what I claim as new and desire to secure by Letters Patent is:

1. Process for the manufacture of waterproof impregnated tubes of paper and like flexible material of the kind described, which consists in winding a sheet of paper of several turns upon itself, so as to form a tube comprising a plurality of layers or convolutions, in pasting some of said convolutions together, and in impregnating said sheet of paper preliminary to the winding thereof with a waterproofing substance spread to cover only a fraction of the whole length of the sheet.

2. Process for the manufacture of waterproof impregnated tubes of paper and like flexible material of the kind described, which consists in winding a sheet of paper of several turns upon itself, so as to form a tube comprising a plurality of layers or convolutions, in pasting some of said convolutions together, and in impregnating said sheet of paper-preliminary to the winding thereof with a waterproofing substance spread only upon a single complete revolution.

U 3. Process for the manufacture of waterproof impregnated tubes of paper and like material of the kind described, which consists in winding a sheet of paper of several turns upon itself, so as to form a tube comprising a plurality of layers or convolutions, in pasting some of said convolutions together, and in impregnating said sheet of paper, while being wound with a waterproofing substance spread to cover only a fraction of the whole length of the sheet. I i

4. Machine for the manufacture of waterproof impregnated tubes of paper and like flexible materialof the kind described, comprising in combination a rotatable winding member for winding a band of said material, power means 'for actuating said winding member, means for ternporarily fastening said band upon said winding member, means for spreading an adhesive substance upon the layers of material and means for spreading a waterproofing substance in fluid con- 5 dition upon said sheet preliminary to the winding thereof.

5. Machine for the manufacture of waterproof impregnated tubes of paper and like flexible ma-' terial of the kind described, comprising in combination a rotatable winding member for winding a band of said material, power means for actuating said winding member, means for temporarily fastening said band upon said winding member, means for spreading an adhesive substance upon the layers of material, and automatic means adapted to be actuated in synchronism with the winding member for intermittently spreading a waterproofing substance in fluid condition upon said sheet so as to impregnate only a fraction of the whole length of the sheet.

6. Machine for the manufacture of waterproof impregnated tubes of paper and like flexible ma- 'terial of the kind described, comprising in combination a rotatable winding member for winding a band of said material, power means for actuating said winding member, means for temporarily fastoning said band upon said winding member,

means for spreading an adhesive substance upon the layers of material and automatic means adapted to be actuated in synchronism with the winding member for spreading a waterproofing substance in fluid condition upon said sheet so as to impregnate but one whole convolution;

7. Machine for the manufacture of waterproof impregnated tubes of paper and like flexible material of the kind described, comprising in combination a rotatable winding member for winding a band of said material, power means for actuating said winding member, means for temporarily fastening said band upon said winding member, means adapted to be actuated in synchronism with the winding member for automatically and intermittently spreading an adhesive substance upon the layers of material, along longitudinal narrow strips, and means adapted to be automatically operated in time relation with the Winding of the sheet for spreading thereon a waterproofing substance in regions deprive from adhesive substance. 8. Machine for the manufacture of waterproof impregnated tubes of paper and like flexible material of the kind described, comprising in combination a rotatable winding member for winding a band of said material, power means for actuating said winding member, means for temporarily fastening said band upon said winding member, means for spreading an adhesive substance upon the layers of material, means for spreading a waterproofing substance upon said sheet and means for expelling therefrom any excess of said waterproofing substance.

9. Machine for the manufacture of waterproof impregnated tubes of paperand like flexible material of the kind described, comprising in combination a rotatable winding member for winding a band of said material, power means for actuating said winding member, means for temporarily fastening said band upon said winding member, means for spreading an adhesive substance upon 7 the layers of mar rial, a container for the waterproofing substance, a stationary rotatable roller permanently dipping in said substance and located close'to the sheet to be impregnated, and means adapted to be actuated in synchronism 75 with the winding member for automatically and intermittently bringing the sheet in contact with said roller.

10. Machine for the manufacture of waterproof impregnated tubes of paper and like flexible material of the kind described, comprising in combination a rotatable winding member for winding a band of said material, power means for actuating said winding member, means for temporarily fastening said band upon said winding member,

means for spreading an adhesive substance upon the layers of material, a container for the waterproofing substance, a'stationary rotatable roller permanently dipping in said substance and located close to one side of the sheet to be im-' pregnated, a movable rotatable roller parallel to the stationary one and provided on the opposite side of the sheet, means for guiding said movable roller and means adapted to beactuated in synchronism with the winding member for causing said movable roller t'o intermittently bear on said sheet whereby the latter is caused to rub upon the stationary roller.

11. In a machine as claimed in claim 10, the further feature residing in that the movable roller is supported at both ends by means of rotatable cams operatively connected with the winding member.

v 12. Machine for the manufacture of waterproof impregnated tubes of paper and like flexible material of the kind described, comprising in combination a rotatable winding member for winding a band of said material, power means for actuating said winding member, means for temporarily fastening said band upon said winding member, means for spreading an adhesive substance upon the layers of material, a container for the waterproofing substance, a stationary rotatable roller permanently dipping in said substance and located close to one side of the sheet to be impregnated, a movable rotatable roller lo-' cated parallel to and above the stationary one on the opposite side of the sheet, means for guiding said movable roller in a substantially vertical direction, rotatable cams on the periphery of which rest the ends of said movable roller, the outline of the cams being such that said upper roller will intermittently rest upon the lower stationary roller, and gearing means, for operatively connecting said cams with the winding member.

13. In a machine as claimed in claim 8 the provision of a container for the waterproofing substance and means for leading back to said container any excess of substance expelled from the sheet.

14. In a machine as claimed in claim '7 the provision on the winding member of at least one longitudinal strip secured thereto and slightly projecting from the winding surface, said strip being disposed in such a position that the sheet to be glued will be pressed thereupon by the glueing means.

15. In a machine as claimed in claim 7 the provision on the winding member of at least one longitudinal strip secured thereto and slightly projecting from the winding surface, said strip being made of yielding material and disposed in such a position that the sheet to be glued will be pressed thereupon by the glueing means.

16. In a machine as claimed in claim 9 the provision of heating means for the waterproofing substance in the container.

1'7. Process for the manufacture of waterproof impregnated tubes of paper and like flexible material of the kind described, which consists inleast the outermost iand innermost adjacent'plies *or convolutions secured together by said adhesive and at least one of the intermediate plies or convolutions waterproofed.

18. In a machine for forming bag tubes of the class described, the combination of a rotating mandrel, means for presenting a strip to the mandrel so as to cause it to be wound upon the mandrel to form the tube, means for applying adhesive to the strip previously to the completion of the winding so as to cause the inner and outer ends'of the strip to be respectively secured to the overlying and underlying convolutions, and means for forming bellows folds in d'almetrically opposed longitudinal portions of the tube as the tube is drawn from the mandrel.

19 In a machine for forming bag tubes of the class described, the combination of a rotating mandrel, means for presenting a strip to the mandrel so as to cause it to be wound upon the mandrel to form a tube, means for applying adhesive to the strip previously to the completion of the winding so as to cause at least the outer end of the strip to be secured to the underlying convolutions of the completed tube, and means for applying a waterproofing substance in fluid condition to a predetermined length portion of the strip as it passes to the mandrel so 'as' to cause at least one complete convolution of the completed tube to be waterproofed. I

20. In amachine for forming bag tubes of the class desc'ribcd,- the combination of means for winding a strip upon itself to form a tube, means for applying adhesive to the stripso as to cause at least the outer end of the strip to be secured to the underlying convolutions of the completed tube, and means for applyinga waterproofing substance in fluid condition to a predetermined length portion of the strip so as to cause at least one' complete convolution of the completed tube to be waterproofed, the major portions of the other convolutions of the tube being substantially free of said waterproofing substance.

21. The process of manufacturing bag tubes of the class described, which comprises winding a strip of paper upon itself a plurality of times so as to form a tube, applying adhesive to the strip so as to cause at least the outer end of the strip to be secured to the underlying convolution of the completed tube, and applying a waterproofing substance in fluid condition to a predetermined length portion of the strip so as to cause at least one complete convolution of the completed tube to be Waterproofed, the major portions of the strip so as to cause at least the outer end of the strip to be secured to the underlying convolution of the completed tube, and applying a waterproofing substance in fluid condition to a pre- RENE JARRIER. 

